21 加法 11 等于多少？
21 + 11 = 32
21加法11 等于 32
竖式演算
验算
- 用减法验算：32 − 11 = 21
- 用减法验算：32 − 21 = 11
相关题目
21 + 10 = 31
21 + 12 = 33
21 + 13 = 34
21 + 9 = 30
21 + 14 = 35
21 + 8 = 29
21 + 15 = 36
21 + 7 = 28
20 + 11 = 31
22 + 11 = 33
19 + 11 = 30
23 + 11 = 34
24 + 11 = 35
18 + 11 = 29
25 + 11 = 36
17 + 11 = 28
1 + 31 = 32
2 + 30 = 32
3 + 29 = 32
4 + 28 = 32
5 + 27 = 32
6 + 26 = 32
43 + 44 = 87
54 + 40 = 94
23 + 63 = 86
22 + 2 = 24
63 + 23 = 86
59 + 20 = 79
64 - 32 = 32
59 - 27 = 32